突破全息近眼显示的空间带宽积瓶颈：眼瞳箱扩展技术综述与展望

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中图分类号：0438 文献标志码：A

Abstract： Holographic near-eye displays can deliver realistic three-dimensional visual experiences，but their inherent space-bandwidth product leads to a trade-off between the eyebox and the field of view. An excessively smalleyebox severely compromises the system's practical utility. In recent years， eyebox expansion techniques in holographic near-eye displays have attracted growing attention. To systematically review the research progress in this field， this paper started from the causes of eyebox constraints and provided a comprehensive review of existing methods for expanding the eyebox. First， the expansion techniques were categorized along multiple dimensions based on their underlying principles and implementation forms. Subsequently， a comparative analysis was conducted on the performance of various methods in terms of eyebox， field of view and reconstruction image quality（such as peak signal-to-noise ratio）， summarizing their advantages， limitations and applicability. Finally， the challenges of current technologies were summarized， and future development trends were discussed.

Keywords： eyebox; holographic display; near-eye display; 3D display; space-bandwidth product

虚拟现实（virtualreality，VR）与增强现实（augmentedreality，AR）技术正以前所未有的速度渗透消费电子、工业制造、医疗健康、教育培训及娱乐社交等领域，重塑着人机交互的体验[]。（剩余23843字）